Pattern-frame for cement-molding machines.



PATENTED SEPT. 19, 1905.

J. B. PETEIE. PATTERN FRAME EOE CEMENT MOLDTNG MACHINES.

APPLICATION FILED FEB.23.1905.

2 sHEETs-sHEET 1.

Witnesses Inventor.

Attorneys No. 799,754. PATENTBD SEPT. 19, 1905.

J. B. PBTRIB.

PATTERN FRAME FOR CEMENT MOLDING MACHINES.

PPLIOATION FILED P11923. 1995.

2 SHEETS-SHEET 2.

' A wl..

Inventor.

Httomegs UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

PatentedlSept. 19, 1905.

Application tiled February 23, 1905. Serial No. 246,929.

a comparatively simple, inexpensive, and eii-y cient device of this character whereby blocks of any desired shape and size may be made in less time and with less labor than with the mechanisms ordinarily employed for the pur-I pose.

A further object of the invention is to provide means for manufacturing blocks or bricks of angular formation, such as are employed in erecting bay-windows and similar structures. A further object is to provide the mold with interchangeable end and side walls for varying the exposed surfaces and ends of the manufactured bricks or blocks.

A stillfurther object is to form said side and end walls with a plurality of seating-recesses for the reception of removable pattern` plates or dies whereby the exposed face or faces of the brick may be molded in imitation of cut or chipped rock or other ornamental designs.

With these and other objects in view the invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and pointed out in the claims hereto appended, it being understood that various changes in form, proportions, and minor details of construction may be resorted to without departing from the principle or sacrilicing any of the advantages of this invention.

In the accompanying drawings, forming a part of this specication, Figure 1 is a perspective View of a mold constructed in accordance with my invention. Fig. 2 is a longitudinal sectional View of the same. Fig. Sis a transverse'sectional view. Fig. 4 is a top plan view showing a mold adapted for the formation of bricks or blocks of angular form. Fig. 5 is a side elevation of the mold shown in Fig. 4. Fig. 6 is a detail sectional view taken on the line 6 6 of Fig. 4. Fig. 7 is a sectional view taken on the line 7 7 of Fig. 6. Fig. 8 is a side elevation of a portion of the mold, showing the clamping-plate and eccentric for clamping the pivoted end of the auxiliary end wall.

Similar numerals of reference indicate corresponding parts in all the figures ofthe drawings.

The mold comprises a base portion 5, provided with longitudinally-disposed spaced extensions 6 and transversely-disposed spaced extensions 7, the latter being formed with perforated lugs 8, by means of which the base may be secured to a bench, table, or other suitable support. The extensions 6 and 7 are formed with vertical openings or apertures 9 for the reception of the depending tongues 10 of the interchangeable side and end walls 11 and 12, respectively, said walls being detachably secured to the base and to each other by means of clamping-bars 13, which extend across the end walls 11 and engage lockinglugs 14, carried by the opposite ends of the side walls. Depending lugs 12 and 13' are cast or otherwise formed integral with the extensions 6 and 7, as shown, said lugs being provided with threaded perforations for the reception of clamping-screws 14', the latter engaging the depending tongues 10 and serving to clamp the side and end walls of the mold in adjusted position. The sides and ends of the mold are formed with seating-recesses 15, designed to receive removable pattern plates or dies 16, upon the active face of which may be stamped, embossed, or otherwise printed or molded the particular design to be imparted to the exposed face of the building-block during the molding operation. The patterns or dies are provided with latterly-extending marginal flanges 17, which engage the rabbeted inner walls 17 of the seatingrecesses 15, so that when outward pressure is applied to said dies they will be effectually retained in position by engagement with said rabbeted walls. The patterns or dies are detachably secured within the recesses 15 by longitudinally-bowed retaining-straps 18, the opposite ends of which bear against the walls of the mold,while the intermediate portion of each strap is detachably secured to the adjacent pattern-plate or die by a clamping-screw 19. It will thus be seen that b v tightening the clamping-screws the dies will be securely retained within the seating-recesses,while by removing the screws said dies IOO or pattern-plates may be readily detached and i IIO preferably smooth and arranged in a vertical plane, as indicated at 20,while the edges thereoi'are inclined or beveled, as shown at 21, so that when the block is formed the edges thereoirl will be beveled, while the cut or chipped surface of the block will have the appearance of being inclosed in a rectangular frame, thereby giving a highly-ornamental appearance to the block.

'Ihe side and end walls of the mold instead of being provided each with a single die-seating recess extending' the entire length of -the mold may be provided with two or more recesses spaced apart by vertical webs 22, as illustrated in Fig. 1. It will of course be understood that as many ol' the dies or patternplates will be employed in molding a block as is desired to produce ornamental faces on the latter and that if only one ornamental face is to be formed on the block then only a single die or pattern need be used.

ln operation asuitable base or bottom board 23 is first placed in position on the supporting-base 5, after which the side and end walls carrying the dies or pattern-plates are also placed in position by introducing the tongues 10 in the apertures of the extensions 6 and 7 and clamping said walls together by means of the bars 13. The cement, concrete, or other plastic material is then shoveled or otherwise introduced in the mold and thoroughly tamped, and after the material has set the molded block is removed by releasing the clamping-bar, thereby permitting the block to be carried on the base-board to the drying-racks or other place until suiiciently hard for use.

In Figs. 4 and 5 there is illustrated a mold for the formation of angular blocks, such as are employed in the erection of bay-windows or similar structures. In this style of mold the side wall 11' is provided with a plurality of spaced openings 24 for the reception of the terminal lugs 25 of an angularly-disposed partition 26, the latter being arranged within the mold, as shown, and provided with aterminal handle 27, by means of which said partition may be adjusted at any angle with respect to the side wall 11'. The handle 27 is provided with a vertical slot 28, which engages the laterallyextending guiding-rib 30 of a segmental plate 31, secured to or provided integral with the side wall 12" of the mold. rIhe segmental plate 31 is provided with a longitudinal slot 32, adapted to receive a laterally-projecting arm 33, carried by the partition 26, and to which is pivoted an eccentric 34, adapted to engage the plate 31 and clamp said partition in adjusted position. A longitudinal slot 35 is also formed inthe side wall 12 of the mold, and disposed in slidable engagement with said wall is an auxiliary side wall or follower-plate 36, having a clampingscrew 37 secured thereto and passing through said slots, so that after the partition has been adjusted at the proper angle said side wall may be moved longitudinally into engagement therewith andl securely clamped by tightening the screw 38, as will be readily understood. As a means for preventing accidental displacement of the pivoted end of the partition after the same has been adjusted there is provided a clamping-plate 39, having a plurality of transversely-disposed slots 40 formed thereon, adapted to receive laterally-projecting pins 41, secured to the side wall 11. An eccentric 42 is pivotally mounted on the plate 39 and adapted to engage one of the pins 41, so that by operating said eccentric the clamping-plate will be forced into engagement with the pivotal lugs 25, thereby electually preventing accidental movement of the latter.

If desired, the partition, as well as the side wall 11', may be provided with the detachable die or pattern plates shown in Figs. 1, 2, and 3 of the drawings or any other style oi' pattern-plates.

The molds are adapted for molding either solid or hollow building-blocks, the latter style of block being made by placing one or more cores in the bottom of the mold preparatory to introducing the cement or other material, as indicated at 43 in Fig. 4 of the drawings.

From the foregoing description it will be seen that there is provided an exceedingly simple, inexpensive, and efcient mold admirably adapted for the attainments of the ends in View.

Having thus described the invention, what is claimed is- 1. In a mold, a base, side and end walls carried by the base and provided with seatingrecesses, pattern-plates seated in said recesses, locking-straps carried by the plates and adapt'- ed to engage the walls of the mold, and a clamping means engaging said plates and straps, respectively.

2. In a mold, a base, side and end walls engaging the base and having their edges inclined or beveled and provided with seatingrecesses, pattern-plates seated in said recesses, and straps for locking the pattern-plates in engagement with said recesses.

. 3. In a mold, a base, side and end walls detachably secured to the base, and an angularlydisposed transverse partition pivoted to one of the side walls of the mold and locked in position by engagement with the opposite side wall thereof.

4. In a mold, a base, side and end walls engaging the base, an adjustable, transverse partition arranged within the mold and pivoted to lone of the side walls of the latter, and means engaging the opposite wall for locking said partition in adjusted position.

5. In a mold, a base, side and end walls detachably secured thereto, and a partition arranged within the mold and pivoted to one of the side walls thereof, and an auxiliary side lIO Wallslidably mounted on the opposite side Wall of the mold and adapted to engage the partition.

6. In a mold, a base, side and end Walls detacliably secured thereto, a segmental plate carried by one of the side Walls of the mold, and an adjustable partition pivoted to the opposite side wall and provided vWith an eccentric adapted to coact with the segmental plate for looking said partition in adjusted position.

7. In a mold, a base, side and end Walls engaging the base, a segmental plate carried by one of the side Walls of the mold and provided with a laterally-projecting flange, and an adjustable partition one end of which is pivoted arranged Within the mold and pivoted to one' of the side Walls thereof, a segmental plate carried by the opposite side Wall, an adjustable auxiliary side Wall slidably mounted on said Wall and adapted to engage the free -end of the partition, means for locking said auX- iliary side wall in adjusted position, a handle carried by the free end of the partition for engagement With the segmental plate, and an eccentric for clamping the partition in adjusted position.

9. In a mold, a base, side and end Walls detachably secured thereto, a segmental plate carried by one of the side Walls, a plurality of spaced openings formed in the opposite side Wall, an adjustable partition one end of which is slidably mounted on the segmental plate and the opposite end thereof provided with terminal lugs adaptedto engage the spaced opening to thereby form a pivotal connection for said partition, an eccentric for clamping the free end of the partition in adjusted position, and a clamping-plate slidably mounted on one of the side Walls of the mold and adapted to engage the terminal lugsof said parti- Witnesses:

W. L. `JOHNSON, W. H. BURY. 

